Electric shaving device with hair collecting means



Aug. 26, 1947. D, plNKAs 2,426,412

ELECTRIC SHAVING DEVICE WITH HAIR COLLECTING MEANS i Original Filed Oct.- 31, 1944- 5 Sheets-Sheet l 7747 l )Wy Z ZZ? /f-/bn-nT-/ /h 234/ #an f /4 /d' /ycf /al 50d /5 /d/ f'a, 14g z3 z3 24@ Z621, 24a, S 3] fad l: I f ff@ fg f4 g f3 if a 4 i? f i F Mig E:Lar A Aug 26,1941 l D. PlNKAs 2,426,412

ELECTRIC SHAVING DEVICE WITH HAIR COLLECTING MEANS Original Filed Oct. 31, 1944 3 Sheets-Sheet g ATTORNEYS ELECTRIC SHAVING DEVICE WITH HAIR COLLECTING MEANS original Filed oct. 31, 1944 5 sheets-sheet s I NvENToR Paz/d P02/fas* ATTORNEYS `of same-may be conveniently done.

Patente-ci ug. 2G, i947 anions 'ELECTRIC SHAVING DEVICE WITH 'HAIR GODECTINGMEANS.

David Finkers, Norwalk, onn.

original application .caoba v31', A1944, 'serial No. "561.199-` Dividedend this apnliatio March 27, 1945, seriamdlssaqn `rllhis is accomplished vby the provision of clo- .sure means associated with the cutters, *forming inside .the latter .fa substantially :closed chamber,

and by the provision of removablecontainerscarried fby the ,sh-aver easing, having connections with the clos-ed chamber so. that hair :particles caught :by .the latter may ibe deposited 2in '-'thecontainers :f or lateridisposal.

In .the illustrated and described :embodiments :of :the invention, the :closure means is secured to .the inner reciprocating .parts of the cutters, to .rnove therewith, .so that .the :particles Emay :be closely vconfined and :prevented .from getting b etween 'the inner :and .outer .cutters Ito jam `saine or vretard their free relative movement, By jthis arrangement the :out lsiai-r .particles :are :alsoiconr,t-inuall'y 'agitated .and :caused to :bei discharged iinto the storage :containers oi ztheicasing. in. a :pre- -ferred embodiment the closure lmeans comprise `.end plates which .closely t itheicutter :structures at all points, land vwhich :are individually yde.- mmlntame yWithout .removing 'the Jreciprocable cutter structure from the head, softhat access may be hadiconveniently tothe'insideiof thehead .ior cleaning lwith a :brush V.if desired'.

Satationaryguard Walls or covers are provided, mounted onthe casing, to coverl thefreciprocating (crete-An i Y l able .cutter structure. andI-,helend closure, Amountclosure means of the movable cuttersand prevent e.

inadvertent .contact lbetritt-'len':the latter and a vuserlsfingers.

A feature of the invention :is the qarovisionlof novel bearing :and spring ,means .for :the zmovable components of ithe cutters whereby 4inertia and `friction areredudandbutdew, simple-andrea@- noniically-producible partsiare employed.

'Other lfeatures and advantages will hereinafter appear. .In 4the accompanyingfdrawmgs:

Figure T1 :is Aa longitudinal section ,of ea cutter -l'iead made according to=one Vform .of theiinvention, mounted von zassihavencasing, only a portion ofthe latter'being-zshown.

ingzassembly iiorxthestructure.

6I is la Kside 4elevation of the `cutter yhead mounted :Ona shaver; portions of the shavercasfing .being rbrokenaway to `show the containers f or 'thecut hair-particles.

Eig. *lfis vallongituelinall section tof acutter head illustrating -.another modication .of the invention.

lllig. 8 lis Yan lexplodediperspective view of the rreciprcoating @cutter and demountable end yc'lo.- ksu-re's oiiltheinoditicationof Fig. 7;

Referring to Figs. `il, r'2, and '3, the cutter head Jcomprises .a channel-shaped stationary `:body for ibase LISD adapteditoibe receivedand held in -a recess SII o'f a `shaver Acasing I2 byvmeans of va set screw I3. 'The `side Walls lilla ofthe base I@ have -angularly outwardly-directed integral ex- "ftensi'ons Mib whichcarry "integral aperture@ cut "ter 'plates I4 #and EIS, one substantially concave Yandethefother substantially convex. f f Ilhe plates irland l5 extend 'generally -angu-larly inward towardleacli other, theinner-edges Ma and If5a of the plates being rigidly y'joined together by an integral -Vs`-haped reinforcing ribfoconnector `I Forcooperation Wit-h "the cutter plates I4 and I5 fa'movable cutter structure fI-l, Fig. 75, is provided having-an elongate base Il-witl; ,side Awalls IIb slidably fitting `Within the vside walls AIta of the stationary base Ill.V 'Integral With the side k-vva1ls il'lfb #ofthe movable cutter structure are -out- A`Wardly directed extensions IIc lying 'closely 'ad- `'jacent `and inside `the extensions I 6b, vthe 'extensions Ir-'Ie h aving inwardly `'directe'olcutter *plates Illdl'and LIlle respectively-engaging `the inner survfaces of the vcutterplates 'Hand l5. Theinner ends jof -thejcutter blades ifi-d and Ile Ahave Yin- 'tegralbearing strips Qr'fianges I lf and I Igg'respectively, these 4flanges beingrespectively engaged and ,carried by parsiQ'f IQllers |33 a11d'tQ,FSS 1 Aand 2,y rotatably mounted -on nheader-l' pins Alila in 4tiirriresiliently oarriedby springs ya1;'ms-lilb. As shown inFi'gS. 2a11d3, fthe "arms "tb are Vformed vvwith fa y-section so -thatthey fit y. snugly in the 'groove 'of the -reinforcingjrib -I-G, and 'are secured tothe latter by Jrivets I8c,. `Each ',arrn has adepending portion YI8dj extending through av clear- 'ance aperture 18e inthe rib '-IS', the Vends of/"the portion #Ifd beigngforrned into eyesthronghwhich *the -pins I8@ extend. A#Referringto Fig. 22,-washers {I8 are -'carriedby-^the -pins '-I da adjacent the rollers 419, and theel-lds. of -the pins Lare ziiattened Wto Ahold the Yvarious parts against separation.

- Breferably `the Iarms IBbare biased ,slightly outwardly so that? continuous pressure is exerted `:bythero1lers 'Iand I `9 on'the l`flanges Llfand lilly, to cause ithe'cuttersf-Ifld and I-'Ieto press iagainst the. iundersidesof A.their respective Vaper- LVturedfnlates. K I 1 y f ..As-.seenin.1ig.2,:the curvature of the'cutter blades I'Id is such that they closely conform to the inner surface of the concave cutter plate I4 and cooperate therewith to shear hair extending through the plate. Similarly, the cutter blades I'Ie are curved to conform to the inner surface of the cutter plate I5 for the same pur- DOSe.

to press against the inner surfaces of the plates I4 and I5 a spring carriage 20 is provided, Fig. 1, mounted on the underside of the base I'Ia. This carriage comprises a resilient metal plate 2I, Figs. 1 and 4, shaped to provide legs 2Ia carrying rollers 22 engaging the inner bottom surface of the base I0. The plate 2I is secured, as by spot welding at the points marked 33, Fig. 4, to a carrier plate 24 having upturned ends 24a by means of which it is clamped to the underside of the base Ha. The extremities 2 Ib of the plate 2| are free, however, so that they may slide an extent on the carrier plate 24, so that a yielding mounting is thereby provided for theV rollers 22.

According to this invention closure means are provided at the ends of the cutter structure I 'I in the form of substantially diamond-Shaped plates 23 integral with the upturned ends 24a of the carrier plate 24.A The closure plates 23 are cut away at their top portions to provide clearance openings 23a so that the entire movable cutter assembly may be inserted in the stationary cutter without interference between the rollersV I8 and I9, and the closure plates 23.

In operation, the closure plates 23 reciprocate with the cutter II, and function to contain the cut hair particles inside the latter. YComparatively few, if any, hair particles pass out through the openings 23a due to their locations close to the top corners of the cutters. As seen in Figs. 1 and 2 the plates 2| and 24 are apertured at 25 to provide access for the driving lever 26 from the shaver motor, the lever having a circular head 26a extending into and engaging the wallsr of a recess 2I formed by embossing the central portion 28 of the base I'Ia as indicated.

According to this construction'the movable cutter structure I'I may be reciprocated by the driving lever 26 while the cutter blades IId and Ileiare being pressed against the' plates I4 and i5 by the spring carriage 26. The rollers 22 function to materially reduce the friction of the cutter structure I'I so that most of the load imposed on the driving lever 26 is the result of, first, the friction between the respective pairs of cutter surfaces, and second, the shearing of hair during the shaving operation.

The apertures in the plates I4 and I5 may have'any suitable shape, round or elongate, but at present I prefer to make the apertures in the form of slots 29 as indicated in Fig. 3. Also, I prefer to make the cutters I'Id and I'Ie in the form of elongate plates to cooperate with the slotted plates for shearing hair.

It will be noted that by the above arrangement I have provided a pair of separated cutters having surfaces which are substantially angularly disposed with respect `to each other whereby either cutter may be applied to the skin inclependently of the other, the curvatures of the cutters being such that practically any portion of the skin of the face or neck may be madevto closely conform to one or the other of the cutter surfaces. As a result, by so conforming the skin and cutter surfaces, a closer and quicker shaving of the skin is made possible. The concavity and convexity of the Vplates I4 and I5 are preferably substantially slight as indicated so that practically all of the surface of the cutter being applied to the skin will come into use for shearing hair. Therefore a larger area of skin is covered during application of either of the cutter plates.

In use, the shaver of this invention may be quickly manipulated to bring either of the cutters into engagement with the skin as desired. For instance, along the jaw bone where the skin surface is convex the concave cutter I4 may be advantageously employed. Under the jaw where the skin surface is concave the convex cutter I5 would be most advantageous, and by judicious use of the concave and convex cutters a user may considerably reduce the time required for shaving while at the same time obtaining a closer shave.

According to the present invention improved means are provided for catching, storing, and disposing of cut hair whereby the inadvertent drop- V ping of hair particles is eliminated, and disposal of same may be quickly and conveniently done. As already pointed out above the space inside the movable cutter structure I'I is substantially enclosed by the closure plates 23 so that cut hair particles passing through the cutters will be contained and prevented from dropping out. Referring to Fig. 6 the casing I2 of the shaver is provided with a pair of containers 36 which may be mounted for convenient removal in any suitable manner, the upper end walls of the containers having apertures 39a with depending trapping flanges 36h through which hair particles may be deposited. Referring to Fig. l the base I'Ia of the movable cutter structure is provided with apertures 3| at each end, and the carrier plate 24 correspondingly apertured so that hair particles dropping inside the movable cutter structure may be discharged therefrom. The plate 24 is extruded at the said 'discharge apertures to provide dependent flanges 32 to which are secured rubber hose connections 33. As seen in Fig. 6 the hose connections 33 extend through apertures in the casingV I2 substantially aligned with ythe apertures 36a oi the containers 3Q. During the reciprocating movement of the cutter structure Il the hose connections 33 will iiex and bend, due to their lower ends being restrained by the stationary casing I2. However, the restraint on the movable cutter I 'I due to the hose connections is slight, because of the small total movement of the cutter structure, and therefore no appreciable additional loading is imposed on the shaver motor.

By this construction Vthe movement of the cutter structure I1 is utilized to cause the hair particles to be quickly discharged through the hose connections 33 into the containers 30, since the agitation given these particles causes them to traverse the base Ila until they drop through the apertures, 3| therein. This is an important 'feature of the invention since it obviates the 30e in the discharge apertures 36j. Y

As seen in Figs. 1 and 6, the outer walls-of the containers 30 are extended upward and shaped to function as stationary cover plates 36e', 'which .preventV inadvertent Contact between a fusers fingers and the movable closure plates 23.

Another modification of the invention is shown the movable and stationary cutter framesl in Figs. 7 and 8. In these figures characters similar to those in the previous figures indicate similar parts.

In this form of the invention a resilient carriage is provided between the base portions of Referring to Fig. '7, a carriage plate 58 is shown, the central portion of which is welded to the stationary base I9. The plate 58, which is resilient, is formed at its end portions to angularly extend adjacent the base Ila of the movable cutter structure H, the pair of rollers 22 being resiliently carried thereby for engagement with said base portion. By this construction the carriage plate 58 and rollers 22 are not reciprocated with the movable cutter I1, and therefore the inertia of the reciprocating structure is correspondingly decreased.

According to this form of the invention the reciprocating cutter l1 is provided with end plates 59 which are readily demountable independently of each other without first requiring removal of the cutter from the head. These plates at their lower portions carry the flexible connector hoses, and by being individually attachable, permit easy assembly of the shaver head without greatly bending or 'distorting the hoses. Referring to Fig. 8, the side walls Ilb of the movable cutter base are provided with apertures 69, and` the extensions Hc with apertures 6l for engagement respectively with pairs of resilient lingers 62 and 63 integrally formed on the end plates 59. Thus, the end plates may be clamped against the ends of the movable cutter structure I1 and securely held thereon, and when desired may be quickly removed for cleaning or other purposes. When removing the plates 59, a sharp flat tool is inserted between the fingers 53 and the walls I'Ic, to lift the hook portions of the fingers out of the apertures 6I. The lower portions of the plates 59 have inwardly-extended flanges 64 which are apertured and extruded to carry the flexible connector tubes 33 as shown in Fig. 7. The base Ha of the movable cutter I'I is slightly flanged about the hair discharge apertures 3l thereof, the flanges nesting in the apertures 32 of the flanges 54 as shown in Fig. 7, thereby providing a more rigid assembly.

By this construction, the closure plates 59 may be tted closely against the edges of the reciprocating cutter structure l1, and may be made to conform at their upper portions 59a to the shape -of the inner surface of the rib I9. The close t thus provided insures against hair particles inadvertently being discharged past the end plates 59.

Variations and modifications may be made within the scope of this invention and portions of the improvements may be used without others.

I claim:

1. An electric shaver having a casing; a reciprocating cutter assembly mounted on the casing, shaped to enclose a space in which cut hair is deposited; a removable container on the casing; and a connection between the container and the cutter assembly whereby cut hair particles may be transferred from the inside of the cutter to the container and Stored in the latter, the agitation of said reciprocating cutter causing said cut hair parti-cles to move to said connection.

2. An electric shaver having a casing; a cutter head having an outer set of stationary blades and a reciprocating cutter structure inside the stationary blades, said structure having blade means cooperating with the stationary blades and being shaped to provide a hair-receiving cavity; a removable container separated from thesaid hairreceiving cavity; and a connection between the container and the cavity whereby cut hair particles may be transferred from the latter to the container and stored therein, the said cutter structure by its movement agitating the cut hair particles in the cavity to aid transference of same to the container.

3. An electric shaver having a casing; a substantially tubular cutter head having an outer set of stationary blades and a reciprocating tubular cutter structure inside Ithe stationary blades; closure means at each end of the reciprocating cutter structure; a container carried by the casing; a connection between the container and the said cutter structure whereby cut hair particles may be transferred from the latter to the container and stored therein, said cutter structure by its movements agitating the cut hair particles it carries to aid transference 0f same to the container; and aA stationary cover plate carried by the casing at each end of the tubular cutter head, t0 enclose the reciprocating cutter structure and closure means therefor so that the latter are shielded from contact by a user.

4. The invention as defined in claim 1 in which the container has a hair-receiving aperture and an inner flange encircling said aperture to trap hair particles, and in which the container has a discharge opening and a removable closure for said opening whereby the container may be emptied.

5. The invention as defined in claim l in which the container has a hair-receiving aperture and means extending inside the container adjacent said aperture for trapping hair particles therein.

6. The invention as defined in claim 1 in which the container has a hair-receiving aperture and means extending inside the container adjacent said aperture for trapping hair particles therein, and in which the container has means, including a discharge opening, whereby it may be emptied.

7. A cutter head for an electric shaver, comprising an outer set of stationary cutter blades; a reciprocable substantially tubular cutter inside the stationary blades for cooperating with the latter; vand closure means carried by each end of the tubular cutter for preventing cut hair particles lodged inside the latter from falling out the ends thereof, said closure means comprising plates having resilient fingers, and said tubular cutter being recessed to receive said fingers whereby the plate may be demountably carried by the cutter.

DAVID PINKAS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,129,559 Blackwell Sept. 6, 1938 2,286,093 Hicks June 9, 1942 2,298,056 Kearney Oct. 6, 1942 2,245,917 Hill June 17, 1941 

